Apparatus for disintegrating ores and other materials.



A.'FEUST. APPARATUS FOR DISINTEGRATING ORES AND OTHER MATERIALS.

APPLICATION FILEYD JULY 6. l9l4- RENEWED SEPT. 2, l9l6- 1,22,278.Patentd Oct. 24,1916.

Wibnwmeo: we- :1 T61- 7 7 Z- MMZP" M 50 ticularly to Fig. 1, the base isprovided E erases earner oration.

ARTHUR FEUST, OF NEW YORK, N. Y.

APPARATUS FOR DISINTEGRATI NG ORES AND OTHER MATERIALS.

Application filed July 6', 1914, Serial No. 849,200.

To all whom it may concern Be it known that I, ARTHUR FEUs'r, a citizenof the United States, and a resident of the county of the Bronx, cityand State of New York, have invented certain new and useful Improvementsin Apparatus for Disintegrating Ores and other Materials, of which thefollowing is a Specification.

This invention relates to apparatus for disintegrating ores and othermaterials.

In the apparatus hitherto devised for the purpose, a tumbling barrel wasused which was rotatable about an axis arranged in a general horizontaldirection, and capable of being tilted to various degrees of inclinationto the horizontal. This barrel was provided with-an inlet opening ofsuitable character, through which the material to be treated wasintroduced, and with an outlet opening at the axis of the barrel,through which the ground or disintegrated material was discharged. Inthe devices hitherto used, it was considered essential that the shape orform of the barrel, backward from the outlet opening, was that of acone, and that the said outlet opening be at the apex thereof. Backwardfrom the base of this cone, or conical outlet portion, the barrel wasformed either cylindrically or conically or both, and the inlet openingin this portion was placed to receive the material to be disintegrated.

My invention consists in having the inner surface curved so as to causean etlicient triturating action, and it has certain definite advantagesover the prior forms described, and my inventlon is shown 1n the accom-.panying drawing, and will be more fully described hereinafter andfinally pointed out iln the claims.

In the accompanying drawing, Figure 1 is vertical section with parts inelevation, and also shows an uninterrupted curve at i the interior ofthe barrel, and l? ig. 2 is a diagrammatic View intended to show themode of operation of the invention.

Similar reference numerals indicate corresponding parts throughout thevarious figures of the drawing.

Referring to the drawing, and more parwith end members 11 and 12, eachof which is provided with a bearing 13 and 14: for the purpose ofsupporting'and guiding the inlet and outlet portions of the barrel. Thebarrel 15 has at'its' portion of largest diameter Specification ofLetters Patent.

Pater. "ed Get. 24, 1916. Renewed September 2, 1916. Serial No.118,253.- i

an embracing gear-wheel 16 which meshes with one of several pinions, notshown. The

pinions are driven by suitable means, and

they in turn drivethe gear-wheel 16, where- ,by the tumbler 15 is movedaround its axis and. causes any material therein to be tumbled about.This driving mechanism is well known and is not described in detail.

The inlet end 20 serves to receive the material to be disintegrated, andthis material, which is indicated by 21 in-Fig. 1, slides along thespherically curved interior surface LO of the tumbler 15. The largerparts of the material gradually gather in the central part of thetumbler, and the weight of these large; portions serves to add to thecrushing action which is carried on.

ried forward and are gradually raised on the ascending side of thebarrel, during which they are sub ected to a continuous crushing Asthese parts are gradually crushed, these pieces are caraction, as wellas to a triturating action, and their subsequent backward travel inproportion to their different sizes, materi-' serves to gradually movethe material to be disintegrated into the position or strata where it issubjected to the greatest crushing force, and by the continued rotationof the barrel 15 by means of suitable mechanism, as for instance asindicated by 16, the material is gradually moved along the curvedascending portion 413, which, in embodiment shown in Fig.1, isparabolic. The parabolic surface forms in the embodiment a continuationof the spherical surface, and both surfaces serve to gradually andevenly move the material through the various strata of crushing,reducing and triturating effects, until the material is dischargedthrough the outlet 48. A parabolic curve has been shown, but anelliptical or other transitory curve may be used. It will beparticularly noted that in the embodi ment shown in-Fig. 1, the materialentering into the reducing zones enters gradually; and while entering 1s-SlllOJQClIQd to the crushing effects, by reason of the particular whenthe material reaches the position indi- .Fig. 2.

cated by 7) and c, it is also subjected to gravity asindicated by thearrows .0 and 0 but at the same time it has a tendency to be moved inthe direction of the arrows 7/ and c and the resultant force bringsabout a triturating action. By the employment of my invention, a veryeliicient mode of oper ation and a very etlicient crushing andtriturating action is obtained, and this is especially important at theend of the ascending movement of the material as indicated in By the useof my invention at this point, the material is subjected for a longertime to the actions referred to, and a very efficient triturating actionis obtained thereby.

One embodiment presents a rotatably mounted shell having hollowtrunnions forming inlet and outlet openings with the shell and trunnionshavin a continuous unbroken and unobstructed inner surface, and with theshell having at its interior a continuous curved form longitudinallyfrom its greatest diameter to the outlet trunnion, and with the greatestdiameter of said shell nearer to the inlet than to the outlet, whileanother embodiment presents the cooperation of the curved form of theshell with .the crushing bodies. which are freely movable within theshell, and coact with the interior of the shell, in which the radius ofthe curved part of greatest diameter is smaller than the axial length ofthe curved part and the curve of that curved part is -a simple curve.

In addition to the material itself which has been described as used inthe tumbling barrels, balls or pebbles may be used. depending largely onthe character the material to be disintegrated. Ilut as this may or maynot be used, and as the material to be crushed acts in a manner likesuch pebbles or balls, the. words crushing bodies are used in theclaims, and for this reason the said words include either the lumps ormasses of ore or other material undergoing treatment, or the metalhalls, [lint pebbles, ctrz. referred to, or both.

in the tube nill of the gradual sl p grinding or reduction in theshortest (J '.i)le mill is obtained, tlercby anbodimcnli. a

saving power. The mills may be provided with suitable linings, riblinings for instance, and any lining of any kind to prevent wear may beused, these linings not having been shown in the drawings as they arewell known. As, by reason of my invention, the higher up the material isin the mill, the greater the sliding or triturating motion of the samebecomes, the improvements lend themselves especially to the operation ofsmaller particles, and by means thereof a short tube mill saving poweris obtained. For the larger particles the fall is required which aids inthe crushing, and by reason of the small zones, a larger trituratingaction is obtained.

'lhe interior surface of the shell is unobstructed and is continuouslycurved from the inlet to the outlet thereof. the inlet and outletopenings being along the same curva ture as that of the shell itself.and the inlet and outlet openings being unobstructed so as to provide anunobstructed passage for the materials The interior of the shelladjacent the inlet opening is curved to C(H 'G- spoud to the rate ofsettling of the feed at a. certain speed of rotation of the shell. andthe interior of the shell adjacent the outlet opening is curved tocorrespond to the rate of trituration of the material at a certain speedof rotation of the shell. and all these features. combined with aplurality of differently sized freely moving crushing bodies within theshell, bring about an improved shell of special advantages, theplurality of differently and small sized freely moving crushing bodiescoacting with the interior curved surfaces of the shell, and adjustthemselves according to size and to the curvature of the interior ofthe. shell, the said crushing bodies extending to the inlet and outletopenings of the shell along the lower part of the shell.

l have described several embodiments of my invention, but it is clearthat changes may be, made therein without departing from the spirit ofthe same, as delined by the appended claims.

I claim:

1. In an apparatus for disintegrating ores and other material, thecombination of a rotating shell having inlet and outlet openings, formedat its interior to.a continuous and unobstructed surface from oneopening to the other the curvature of the shell adj: rent one openingbeing substantially hemispherical and the curvature ofthe shell adjacentthe other opening being substantially paraboloidal or semi-e]lipsoidal,and a plu rality of dill'erently sized freely movable crushing bodieswithin the shell coacting with the said vauvingly curved surfaces at theinterior of the shell, adjusting themselves according to size, and tothe curvature of the interior of the shell.

2. In an apparatus for disintegrating ores and other material, thecombination of a rotating shell formed at its interior to a continuousand ui'lobstructed surface from the inlet to the outlet thereof, andhaving at either end of the shell and in unobstructed communicationtherewith, unobstructed inlet and outlet openings in the line of thecurvature of the shell, the curvature of the shell adjacent one of saidopenings being substantially hemispherical with the center of curvatureon the axis of rotation of the shell, and above the lower part of theinlet and outlet openings, and 'a plurality of differently sized freelymoving comparatively small sized crushing bodies within the shellcoactiug with the said curved surface at the interior of the shell,adjusting themselves according to size and to the interior curvedsurf-ace of the shell, and operative on the shell to the lower part ofthe inlet and outlet openings therein.

In an apparatus for disintegrating ores and other material, thecombination of a rotating shell formed at its interior to a continuousand unobstructed surface from the inlet to the outlet thereof, andhavingunobstructed inlet and outlet openings in unobstructedcommunication therewith, and in the line of the curvature of the shell,the curvature of, the interior of the shell adjacentone of said openingsbeing substantially paraboloidal or semi-ellipsoidal with the center ofcurvature on the axis of rotation of the shell, and above the lower partof the inlet and outletopenings, and a plurality of differently sizedfreely movable comparatively small sized crushing bodies Within theshell coacting with the said curved surfaces at the interior of theshell, adjusting themselves according to size and to the interior curvedsurface of the shell, and operative on the shell to the lower part ofthe inlet and outlet openings therein.

4. An apparatus for disintegrating ores and other material consisting ofa rotatably mounted shell having hollow trunnions for ning inlet andoutlet openings, the said shell and trunnions having a continuousunbroken and unobstructed inner surface, the

greatest diameter of said shell being nearer to the inlet than to theoutlet and the said shell having its interior of a continuous curvedform longitudinally from said greatest diameter to the outlet trunnion.

5. In an apparatus for disintegrating ores and other material, arotatably mounted shell having hollow trunnions forming-inlet and outletopenings, the said shell and trunnions having a continuous unbroken andunobstructed inner surface, and the said shell having its interior ofthe form of a continuous simple curve longitudinally to the outlettrunnion from the greatest diameter of said curved form, and having theaxial length of said curved form greater than half of said diameter, incombination with a plurality of freely movable crushing bodies withinthe shell, coacting with. said interior surface of the shell.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing Witnesses.

Jos. BISBANO, F. Hoes.

